| 6 |
|
* Copyright 1996 Bernd Schmidt |
| 7 |
|
*/ |
| 8 |
|
|
| 9 |
+ |
#ifndef M68K_FLAGS_H |
| 10 |
+ |
#define M68K_FLAGS_H |
| 11 |
+ |
|
| 12 |
+ |
#ifdef OPTIMIZED_FLAGS |
| 13 |
+ |
|
| 14 |
|
#if defined(__i386__) && defined(X86_ASSEMBLY) |
| 15 |
|
|
| 16 |
+ |
#ifndef SAHF_SETO_PROFITABLE |
| 17 |
+ |
|
| 18 |
|
struct flag_struct { |
| 19 |
< |
unsigned int cznv; |
| 20 |
< |
unsigned int x; |
| 19 |
> |
uae_u32 cznv; |
| 20 |
> |
uae_u32 x; |
| 21 |
|
}; |
| 22 |
|
|
| 23 |
< |
#define SET_ZFLG(y) (regflags.cznv = (regflags.cznv & ~0x40) | (((y) & 1) << 6)) |
| 24 |
< |
#define SET_CFLG(y) (regflags.cznv = (regflags.cznv & ~1) | ((y) & 1)) |
| 25 |
< |
#define SET_VFLG(y) (regflags.cznv = (regflags.cznv & ~0x800) | (((y) & 1) << 11)) |
| 26 |
< |
#define SET_NFLG(y) (regflags.cznv = (regflags.cznv & ~0x80) | (((y) & 1) << 7)) |
| 27 |
< |
#define SET_XFLG(y) (regflags.x = (y)) |
| 28 |
< |
|
| 29 |
< |
#define GET_ZFLG ((regflags.cznv >> 6) & 1) |
| 30 |
< |
#define GET_CFLG (regflags.cznv & 1) |
| 31 |
< |
#define GET_VFLG ((regflags.cznv >> 11) & 1) |
| 32 |
< |
#define GET_NFLG ((regflags.cznv >> 7) & 1) |
| 33 |
< |
#define GET_XFLG (regflags.x & 1) |
| 23 |
> |
#define FLAGVAL_Z 0x40 |
| 24 |
> |
#define FLAGVAL_N 0x80 |
| 25 |
> |
|
| 26 |
> |
#define SET_ZFLG(y) (regflags.cznv = (regflags.cznv & ~0x40) | (((y) & 1) << 6)) |
| 27 |
> |
#define SET_CFLG(y) (regflags.cznv = (regflags.cznv & ~1) | ((y) & 1)) |
| 28 |
> |
#define SET_VFLG(y) (regflags.cznv = (regflags.cznv & ~0x800) | (((y) & 1) << 11)) |
| 29 |
> |
#define SET_NFLG(y) (regflags.cznv = (regflags.cznv & ~0x80) | (((y) & 1) << 7)) |
| 30 |
> |
#define SET_XFLG(y) (regflags.x = (y)) |
| 31 |
> |
|
| 32 |
> |
#define GET_ZFLG ((regflags.cznv >> 6) & 1) |
| 33 |
> |
#define GET_CFLG (regflags.cznv & 1) |
| 34 |
> |
#define GET_VFLG ((regflags.cznv >> 11) & 1) |
| 35 |
> |
#define GET_NFLG ((regflags.cznv >> 7) & 1) |
| 36 |
> |
#define GET_XFLG (regflags.x & 1) |
| 37 |
> |
|
| 38 |
> |
#define CLEAR_CZNV (regflags.cznv = 0) |
| 39 |
> |
#define GET_CZNV (regflags.cznv) |
| 40 |
> |
#define IOR_CZNV(X) (regflags.cznv |= (X)) |
| 41 |
> |
#define SET_CZNV(X) (regflags.cznv = (X)) |
| 42 |
|
|
| 43 |
< |
#define CLEAR_CZNV (regflags.cznv = 0) |
| 29 |
< |
#define COPY_CARRY (regflags.x = regflags.cznv) |
| 43 |
> |
#define COPY_CARRY (regflags.x = regflags.cznv) |
| 44 |
|
|
| 45 |
|
extern struct flag_struct regflags __asm__ ("regflags"); |
| 46 |
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|
| 72 |
|
return 0; |
| 73 |
|
} |
| 74 |
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|
| 75 |
< |
#define x86_flag_testl(v) \ |
| 76 |
< |
__asm__ __volatile__ ("testl %1,%1\n\t" \ |
| 75 |
> |
#define optflag_testl(v) \ |
| 76 |
> |
__asm__ __volatile__ ("andl %1,%1\n\t" \ |
| 77 |
|
"pushfl\n\t" \ |
| 78 |
|
"popl %0\n\t" \ |
| 79 |
|
: "=r" (regflags.cznv) : "r" (v) : "cc") |
| 80 |
|
|
| 81 |
< |
#define x86_flag_testw(v) \ |
| 82 |
< |
__asm__ __volatile__ ("testw %w1,%w1\n\t" \ |
| 81 |
> |
#define optflag_testw(v) \ |
| 82 |
> |
__asm__ __volatile__ ("andw %w1,%w1\n\t" \ |
| 83 |
|
"pushfl\n\t" \ |
| 84 |
|
"popl %0\n\t" \ |
| 85 |
|
: "=r" (regflags.cznv) : "r" (v) : "cc") |
| 86 |
|
|
| 87 |
< |
#define x86_flag_testb(v) \ |
| 88 |
< |
__asm__ __volatile__ ("testb %b1,%b1\n\t" \ |
| 87 |
> |
#define optflag_testb(v) \ |
| 88 |
> |
__asm__ __volatile__ ("andb %b1,%b1\n\t" \ |
| 89 |
|
"pushfl\n\t" \ |
| 90 |
|
"popl %0\n\t" \ |
| 91 |
|
: "=r" (regflags.cznv) : "q" (v) : "cc") |
| 92 |
|
|
| 93 |
< |
#define x86_flag_addl(v, s, d) do { \ |
| 93 |
> |
#define optflag_addl(v, s, d) do { \ |
| 94 |
|
__asm__ __volatile__ ("addl %k2,%k1\n\t" \ |
| 95 |
|
"pushfl\n\t" \ |
| 96 |
|
"popl %0\n\t" \ |
| 98 |
|
COPY_CARRY; \ |
| 99 |
|
} while (0) |
| 100 |
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|
| 101 |
< |
#define x86_flag_addw(v, s, d) do { \ |
| 101 |
> |
#define optflag_addw(v, s, d) do { \ |
| 102 |
|
__asm__ __volatile__ ("addw %w2,%w1\n\t" \ |
| 103 |
|
"pushfl\n\t" \ |
| 104 |
|
"popl %0\n\t" \ |
| 106 |
|
COPY_CARRY; \ |
| 107 |
|
} while (0) |
| 108 |
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|
| 109 |
< |
#define x86_flag_addb(v, s, d) do { \ |
| 109 |
> |
#define optflag_addb(v, s, d) do { \ |
| 110 |
|
__asm__ __volatile__ ("addb %b2,%b1\n\t" \ |
| 111 |
|
"pushfl\n\t" \ |
| 112 |
|
"popl %0\n\t" \ |
| 114 |
|
COPY_CARRY; \ |
| 115 |
|
} while (0) |
| 116 |
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|
| 117 |
< |
#define x86_flag_subl(v, s, d) do { \ |
| 117 |
> |
#define optflag_subl(v, s, d) do { \ |
| 118 |
|
__asm__ __volatile__ ("subl %k2,%k1\n\t" \ |
| 119 |
|
"pushfl\n\t" \ |
| 120 |
|
"popl %0\n\t" \ |
| 122 |
|
COPY_CARRY; \ |
| 123 |
|
} while (0) |
| 124 |
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|
| 125 |
< |
#define x86_flag_subw(v, s, d) do { \ |
| 125 |
> |
#define optflag_subw(v, s, d) do { \ |
| 126 |
|
__asm__ __volatile__ ("subw %w2,%w1\n\t" \ |
| 127 |
|
"pushfl\n\t" \ |
| 128 |
|
"popl %0\n\t" \ |
| 130 |
|
COPY_CARRY; \ |
| 131 |
|
} while (0) |
| 132 |
|
|
| 133 |
< |
#define x86_flag_subb(v, s, d) do { \ |
| 133 |
> |
#define optflag_subb(v, s, d) do { \ |
| 134 |
|
__asm__ __volatile__ ("subb %b2,%b1\n\t" \ |
| 135 |
|
"pushfl\n\t" \ |
| 136 |
|
"popl %0\n\t" \ |
| 138 |
|
COPY_CARRY; \ |
| 139 |
|
} while (0) |
| 140 |
|
|
| 141 |
< |
#define x86_flag_cmpl(s, d) \ |
| 141 |
> |
#define optflag_cmpl(s, d) \ |
| 142 |
|
__asm__ __volatile__ ("cmpl %k1,%k2\n\t" \ |
| 143 |
|
"pushfl\n\t" \ |
| 144 |
|
"popl %0\n\t" \ |
| 145 |
|
: "=r" (regflags.cznv) : "rmi" (s), "r" (d) : "cc") |
| 146 |
|
|
| 147 |
< |
#define x86_flag_cmpw(s, d) \ |
| 147 |
> |
#define optflag_cmpw(s, d) \ |
| 148 |
|
__asm__ __volatile__ ("cmpw %w1,%w2\n\t" \ |
| 149 |
|
"pushfl\n\t" \ |
| 150 |
|
"popl %0\n\t" \ |
| 151 |
|
: "=r" (regflags.cznv) : "rmi" (s), "r" (d) : "cc") |
| 152 |
|
|
| 153 |
< |
#define x86_flag_cmpb(s, d) \ |
| 153 |
> |
#define optflag_cmpb(s, d) \ |
| 154 |
|
__asm__ __volatile__ ("cmpb %b1,%b2\n\t" \ |
| 155 |
|
"pushfl\n\t" \ |
| 156 |
|
"popl %0\n\t" \ |
| 157 |
|
: "=r" (regflags.cznv) : "qmi" (s), "q" (d) : "cc") |
| 158 |
|
|
| 159 |
< |
#elif defined(__sparc__) && (defined(SPARC_V8_ASSEMBLY) || defined(SPARC_V9_ASSEMBLY)) |
| 159 |
> |
#else |
| 160 |
|
|
| 161 |
|
struct flag_struct { |
| 162 |
< |
union { |
| 163 |
< |
unsigned short all; |
| 150 |
< |
unsigned char bytes[2]; |
| 151 |
< |
}; |
| 162 |
> |
uae_u32 cznv; |
| 163 |
> |
uae_u32 x; |
| 164 |
|
}; |
| 165 |
|
|
| 166 |
< |
typedef unsigned short * flags_addr; |
| 167 |
< |
extern struct flag_struct regflags; |
| 156 |
< |
#define M68K_FLAGS_ADDR ((flags_addr)(®flags.all)) |
| 157 |
< |
#define M68K_FLAGS_NZVC regflags.bytes[1] |
| 158 |
< |
#define M68K_FLAGS_X regflags.bytes[0] |
| 166 |
> |
#define FLAGVAL_Z 0x4000 |
| 167 |
> |
#define FLAGVAL_N 0x8000 |
| 168 |
|
|
| 169 |
< |
#if 0 |
| 169 |
> |
#define SET_ZFLG(y) (regflags.cznv = (regflags.cznv & ~0x4000) | (((y) & 1) << 14)) |
| 170 |
> |
#define SET_CFLG(y) (regflags.cznv = (regflags.cznv & ~0x100) | (((y) & 1) << 8)) |
| 171 |
> |
#define SET_VFLG(y) (regflags.cznv = (regflags.cznv & ~0x1) | (((y) & 1))) |
| 172 |
> |
#define SET_NFLG(y) (regflags.cznv = (regflags.cznv & ~0x8000) | (((y) & 1) << 15)) |
| 173 |
> |
#define SET_XFLG(y) (regflags.x = (y)) |
| 174 |
> |
|
| 175 |
> |
#define GET_ZFLG ((regflags.cznv >> 14) & 1) |
| 176 |
> |
#define GET_CFLG ((regflags.cznv >> 8) & 1) |
| 177 |
> |
#define GET_VFLG ((regflags.cznv >> 0) & 1) |
| 178 |
> |
#define GET_NFLG ((regflags.cznv >> 15) & 1) |
| 179 |
> |
#define GET_XFLG (regflags.x & 1) |
| 180 |
> |
|
| 181 |
> |
#define CLEAR_CZNV (regflags.cznv = 0) |
| 182 |
> |
#define GET_CZNV (regflags.cznv) |
| 183 |
> |
#define IOR_CZNV(X) (regflags.cznv |= (X)) |
| 184 |
> |
#define SET_CZNV(X) (regflags.cznv = (X)) |
| 185 |
|
|
| 186 |
< |
#define SET_ZFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x01) | ((y) & 1)) |
| 163 |
< |
#define SET_CFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x02) | (((y) & 1) << 1)) |
| 164 |
< |
#define SET_XFLG(y) (M68K_FLAGS_X = ((y) & 1) << 1) |
| 165 |
< |
#define SET_VFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x10) | (((y) & 1) << 4)) |
| 166 |
< |
#define SET_NFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x80) | (((y) & 1) << 7)) |
| 167 |
< |
|
| 168 |
< |
#define GET_ZFLG (M68K_FLAGS_NZVC & 1) |
| 169 |
< |
#define GET_CFLG ((M68K_FLAGS_NZVC >> 1) & 1) |
| 170 |
< |
#define GET_XFLG ((M68K_FLAGS_X >> 1) & 1) |
| 171 |
< |
#define GET_VFLG ((M68K_FLAGS_NZVC >> 4) & 1) |
| 172 |
< |
#define GET_NFLG ((M68K_FLAGS_NZVC >> 7) & 1) |
| 186 |
> |
#define COPY_CARRY (regflags.x = (regflags.cznv)>>8) |
| 187 |
|
|
| 188 |
< |
#define CLEAR_CZNV (M68K_FLAGS_NZVC = 0) |
| 175 |
< |
#define COPY_CARRY (M68K_FLAGS_X = M68K_FLAGS_NZVC) |
| 188 |
> |
extern struct flag_struct regflags __asm__ ("regflags"); |
| 189 |
|
|
| 190 |
< |
#else |
| 190 |
> |
static __inline__ int cctrue(int cc) |
| 191 |
> |
{ |
| 192 |
> |
uae_u32 cznv = regflags.cznv; |
| 193 |
> |
switch(cc){ |
| 194 |
> |
case 0: return 1; /* T */ |
| 195 |
> |
case 1: return 0; /* F */ |
| 196 |
> |
case 2: return (cznv & 0x4100) == 0; /* !GET_CFLG && !GET_ZFLG; HI */ |
| 197 |
> |
case 3: return (cznv & 0x4100) != 0; /* GET_CFLG || GET_ZFLG; LS */ |
| 198 |
> |
case 4: return (cznv & 0x100) == 0; /* !GET_CFLG; CC */ |
| 199 |
> |
case 5: return (cznv & 0x100) != 0; /* GET_CFLG; CS */ |
| 200 |
> |
case 6: return (cznv & 0x4000) == 0; /* !GET_ZFLG; NE */ |
| 201 |
> |
case 7: return (cznv & 0x4000) != 0; /* GET_ZFLG; EQ */ |
| 202 |
> |
case 8: return (cznv & 0x01) == 0; /* !GET_VFLG; VC */ |
| 203 |
> |
case 9: return (cznv & 0x01) != 0; /* GET_VFLG; VS */ |
| 204 |
> |
case 10:return (cznv & 0x8000) == 0; /* !GET_NFLG; PL */ |
| 205 |
> |
case 11:return (cznv & 0x8000) != 0; /* GET_NFLG; MI */ |
| 206 |
> |
case 12:return (((cznv << 15) ^ cznv) & 0x8000) == 0; /* GET_NFLG == GET_VFLG; GE */ |
| 207 |
> |
case 13:return (((cznv << 15) ^ cznv) & 0x8000) != 0;/* GET_NFLG != GET_VFLG; LT */ |
| 208 |
> |
case 14: |
| 209 |
> |
cznv &= 0xc001; |
| 210 |
> |
return (((cznv << 15) ^ cznv) & 0xc000) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */ |
| 211 |
> |
case 15: |
| 212 |
> |
cznv &= 0xc001; |
| 213 |
> |
return (((cznv << 15) ^ cznv) & 0xc000) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */ |
| 214 |
> |
} |
| 215 |
> |
abort(); |
| 216 |
> |
return 0; |
| 217 |
> |
} |
| 218 |
> |
|
| 219 |
> |
/* Is there any way to do this without declaring *all* memory clobbered? |
| 220 |
> |
I.e. any way to tell gcc that some byte-sized value is in %al? */ |
| 221 |
> |
#define optflag_testl(v) \ |
| 222 |
> |
__asm__ __volatile__ ("andl %0,%0\n\t" \ |
| 223 |
> |
"lahf\n\t" \ |
| 224 |
> |
"seto %%al\n\t" \ |
| 225 |
> |
"movb %%al,regflags\n\t" \ |
| 226 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 227 |
> |
: : "r" (v) : "%eax","cc","memory") |
| 228 |
> |
|
| 229 |
> |
#define optflag_testw(v) \ |
| 230 |
> |
__asm__ __volatile__ ("andw %w0,%w0\n\t" \ |
| 231 |
> |
"lahf\n\t" \ |
| 232 |
> |
"seto %%al\n\t" \ |
| 233 |
> |
"movb %%al,regflags\n\t" \ |
| 234 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 235 |
> |
: : "r" (v) : "%eax","cc","memory") |
| 236 |
> |
|
| 237 |
> |
#define optflag_testb(v) \ |
| 238 |
> |
__asm__ __volatile__ ("andb %b0,%b0\n\t" \ |
| 239 |
> |
"lahf\n\t" \ |
| 240 |
> |
"seto %%al\n\t" \ |
| 241 |
> |
"movb %%al,regflags\n\t" \ |
| 242 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 243 |
> |
: : "q" (v) : "%eax","cc","memory") |
| 244 |
> |
|
| 245 |
> |
#define optflag_addl(v, s, d) do { \ |
| 246 |
> |
__asm__ __volatile__ ("addl %k1,%k0\n\t" \ |
| 247 |
> |
"lahf\n\t" \ |
| 248 |
> |
"seto %%al\n\t" \ |
| 249 |
> |
"movb %%al,regflags\n\t" \ |
| 250 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 251 |
> |
: "=r" (v) : "rmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 252 |
> |
COPY_CARRY; \ |
| 253 |
> |
} while (0) |
| 254 |
> |
|
| 255 |
> |
#define optflag_addw(v, s, d) do { \ |
| 256 |
> |
__asm__ __volatile__ ("addw %w1,%w0\n\t" \ |
| 257 |
> |
"lahf\n\t" \ |
| 258 |
> |
"seto %%al\n\t" \ |
| 259 |
> |
"movb %%al,regflags\n\t" \ |
| 260 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 261 |
> |
: "=r" (v) : "rmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 262 |
> |
COPY_CARRY; \ |
| 263 |
> |
} while (0) |
| 264 |
> |
|
| 265 |
> |
#define optflag_addb(v, s, d) do { \ |
| 266 |
> |
__asm__ __volatile__ ("addb %b1,%b0\n\t" \ |
| 267 |
> |
"lahf\n\t" \ |
| 268 |
> |
"seto %%al\n\t" \ |
| 269 |
> |
"movb %%al,regflags\n\t" \ |
| 270 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 271 |
> |
: "=q" (v) : "qmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 272 |
> |
COPY_CARRY; \ |
| 273 |
> |
} while (0) |
| 274 |
> |
|
| 275 |
> |
#define optflag_subl(v, s, d) do { \ |
| 276 |
> |
__asm__ __volatile__ ("subl %k1,%k0\n\t" \ |
| 277 |
> |
"lahf\n\t" \ |
| 278 |
> |
"seto %%al\n\t" \ |
| 279 |
> |
"movb %%al,regflags\n\t" \ |
| 280 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 281 |
> |
: "=r" (v) : "rmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 282 |
> |
COPY_CARRY; \ |
| 283 |
> |
} while (0) |
| 284 |
|
|
| 285 |
< |
#define M68K_FLAGS_ALL regflags.all |
| 285 |
> |
#define optflag_subw(v, s, d) do { \ |
| 286 |
> |
__asm__ __volatile__ ("subw %w1,%w0\n\t" \ |
| 287 |
> |
"lahf\n\t" \ |
| 288 |
> |
"seto %%al\n\t" \ |
| 289 |
> |
"movb %%al,regflags\n\t" \ |
| 290 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 291 |
> |
: "=r" (v) : "rmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 292 |
> |
COPY_CARRY; \ |
| 293 |
> |
} while (0) |
| 294 |
|
|
| 295 |
< |
#define SET_ZFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x01) | ((y) & 1)) |
| 296 |
< |
#define SET_CFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x02) | (((y) & 1) << 1)) |
| 297 |
< |
#define SET_XFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x200)| (((y) & 1) << 9)) |
| 298 |
< |
#define SET_VFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x10) | (((y) & 1) << 4)) |
| 299 |
< |
#define SET_NFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x80) | (((y) & 1) << 7)) |
| 300 |
< |
|
| 301 |
< |
#define GET_ZFLG (M68K_FLAGS_ALL & 1) |
| 302 |
< |
#define GET_CFLG ((M68K_FLAGS_ALL >> 1) & 1) |
| 303 |
< |
#define GET_XFLG ((M68K_FLAGS_ALL >> 9) & 1) |
| 190 |
< |
#define GET_VFLG ((M68K_FLAGS_ALL >> 4) & 1) |
| 191 |
< |
#define GET_NFLG ((M68K_FLAGS_ALL >> 7) & 1) |
| 295 |
> |
#define optflag_subb(v, s, d) do { \ |
| 296 |
> |
__asm__ __volatile__ ("subb %b1,%b0\n\t" \ |
| 297 |
> |
"lahf\n\t" \ |
| 298 |
> |
"seto %%al\n\t" \ |
| 299 |
> |
"movb %%al,regflags\n\t" \ |
| 300 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 301 |
> |
: "=q" (v) : "qmi" (s), "0" (d) : "%eax","cc","memory"); \ |
| 302 |
> |
COPY_CARRY; \ |
| 303 |
> |
} while (0) |
| 304 |
|
|
| 305 |
< |
#define CLEAR_CZNV (M68K_FLAGS_NZVC = 0) |
| 306 |
< |
#define COPY_CARRY (M68K_FLAGS_X = M68K_FLAGS_NZVC) |
| 305 |
> |
#define optflag_cmpl(s, d) \ |
| 306 |
> |
__asm__ __volatile__ ("cmpl %k0,%k1\n\t" \ |
| 307 |
> |
"lahf\n\t" \ |
| 308 |
> |
"seto %%al\n\t" \ |
| 309 |
> |
"movb %%al,regflags\n\t" \ |
| 310 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 311 |
> |
: : "rmi" (s), "r" (d) : "%eax","cc","memory") |
| 312 |
> |
|
| 313 |
> |
#define optflag_cmpw(s, d) \ |
| 314 |
> |
__asm__ __volatile__ ("cmpw %w0,%w1\n\t" \ |
| 315 |
> |
"lahf\n\t" \ |
| 316 |
> |
"seto %%al\n\t" \ |
| 317 |
> |
"movb %%al,regflags\n\t" \ |
| 318 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 319 |
> |
: : "rmi" (s), "r" (d) : "%eax","cc","memory"); |
| 320 |
> |
|
| 321 |
> |
#define optflag_cmpb(s, d) \ |
| 322 |
> |
__asm__ __volatile__ ("cmpb %b0,%b1\n\t" \ |
| 323 |
> |
"lahf\n\t" \ |
| 324 |
> |
"seto %%al\n\t" \ |
| 325 |
> |
"movb %%al,regflags\n\t" \ |
| 326 |
> |
"movb %%ah,regflags+1\n\t" \ |
| 327 |
> |
: : "qmi" (s), "q" (d) : "%eax","cc","memory") |
| 328 |
|
|
| 329 |
|
#endif |
| 330 |
|
|
| 331 |
+ |
#elif defined(__sparc__) && (defined(SPARC_V8_ASSEMBLY) || defined(SPARC_V9_ASSEMBLY)) |
| 332 |
+ |
|
| 333 |
+ |
struct flag_struct { |
| 334 |
+ |
unsigned char nzvc; |
| 335 |
+ |
unsigned char x; |
| 336 |
+ |
}; |
| 337 |
+ |
|
| 338 |
+ |
extern struct flag_struct regflags; |
| 339 |
+ |
|
| 340 |
+ |
#define FLAGVAL_Z 0x04 |
| 341 |
+ |
#define FLAGVAL_N 0x08 |
| 342 |
+ |
|
| 343 |
+ |
#define SET_ZFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x04) | (((y) & 1) << 2)) |
| 344 |
+ |
#define SET_CFLG(y) (regflags.nzvc = (regflags.nzvc & ~1) | ((y) & 1)) |
| 345 |
+ |
#define SET_VFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x02) | (((y) & 1) << 1)) |
| 346 |
+ |
#define SET_NFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x08) | (((y) & 1) << 3)) |
| 347 |
+ |
#define SET_XFLG(y) (regflags.x = (y)) |
| 348 |
+ |
|
| 349 |
+ |
#define GET_ZFLG ((regflags.nzvc >> 2) & 1) |
| 350 |
+ |
#define GET_CFLG (regflags.nzvc & 1) |
| 351 |
+ |
#define GET_VFLG ((regflags.nzvc >> 1) & 1) |
| 352 |
+ |
#define GET_NFLG ((regflags.nzvc >> 3) & 1) |
| 353 |
+ |
#define GET_XFLG (regflags.x & 1) |
| 354 |
+ |
|
| 355 |
+ |
#define CLEAR_CZNV (regflags.nzvc = 0) |
| 356 |
+ |
#define GET_CZNV (reflags.nzvc) |
| 357 |
+ |
#define IOR_CZNV(X) (refglags.nzvc |= (X)) |
| 358 |
+ |
#define SET_CZNV(X) (regflags.nzvc = (X)) |
| 359 |
+ |
|
| 360 |
+ |
#define COPY_CARRY (regflags.x = regflags.nzvc) |
| 361 |
+ |
|
| 362 |
|
static __inline__ int cctrue(int cc) |
| 363 |
|
{ |
| 364 |
< |
uae_u32 nzvc = M68K_FLAGS_NZVC; |
| 364 |
> |
uae_u32 nzvc = regflags.nzvc; |
| 365 |
|
switch(cc){ |
| 366 |
< |
case 0: return 1; /* T */ |
| 367 |
< |
case 1: return 0; /* F */ |
| 368 |
< |
case 2: return (nzvc & 0x03) == 0; /* !GET_CFLG && !GET_ZFLG; HI */ |
| 369 |
< |
case 3: return (nzvc & 0x03) != 0; /* GET_CFLG || GET_ZFLG; LS */ |
| 370 |
< |
case 4: return (nzvc & 0x02) == 0; /* !GET_CFLG; CC */ |
| 371 |
< |
case 5: return (nzvc & 0x02) != 0; /* GET_CFLG; CS */ |
| 372 |
< |
case 6: return (nzvc & 0x01) == 0; /* !GET_ZFLG; NE */ |
| 373 |
< |
case 7: return (nzvc & 0x01) != 0; /* GET_ZFLG; EQ */ |
| 374 |
< |
case 8: return (nzvc & 0x10) == 0; /* !GET_VFLG; VC */ |
| 375 |
< |
case 9: return (nzvc & 0x10) != 0; /* GET_VFLG; VS */ |
| 376 |
< |
case 10:return (nzvc & 0x80) == 0; /* !GET_NFLG; PL */ |
| 377 |
< |
case 11:return (nzvc & 0x80) != 0; /* GET_NFLG; MI */ |
| 378 |
< |
case 12:return (((nzvc << 3) ^ nzvc) & 0x80) == 0; /* GET_NFLG == GET_VFLG; GE */ |
| 379 |
< |
case 13:return (((nzvc << 3) ^ nzvc) & 0x80) != 0; /* GET_NFLG != GET_VFLG; LT */ |
| 366 |
> |
case 0: return 1; /* T */ |
| 367 |
> |
case 1: return 0; /* F */ |
| 368 |
> |
case 2: return (nzvc & 0x05) == 0; /* !GET_CFLG && !GET_ZFLG; HI */ |
| 369 |
> |
case 3: return (nzvc & 0x05) != 0; /* GET_CFLG || GET_ZFLG; LS */ |
| 370 |
> |
case 4: return (nzvc & 1) == 0; /* !GET_CFLG; CC */ |
| 371 |
> |
case 5: return (nzvc & 1) != 0; /* GET_CFLG; CS */ |
| 372 |
> |
case 6: return (nzvc & 0x04) == 0; /* !GET_ZFLG; NE */ |
| 373 |
> |
case 7: return (nzvc & 0x04) != 0; /* GET_ZFLG; EQ */ |
| 374 |
> |
case 8: return (nzvc & 0x02) == 0;/* !GET_VFLG; VC */ |
| 375 |
> |
case 9: return (nzvc & 0x02) != 0;/* GET_VFLG; VS */ |
| 376 |
> |
case 10:return (nzvc & 0x08) == 0; /* !GET_NFLG; PL */ |
| 377 |
> |
case 11:return (nzvc & 0x08) != 0; /* GET_NFLG; MI */ |
| 378 |
> |
case 12:return (((nzvc << 2) ^ nzvc) & 0x08) == 0; /* GET_NFLG == GET_VFLG; GE */ |
| 379 |
> |
case 13:return (((nzvc << 2) ^ nzvc) & 0x08) != 0;/* GET_NFLG != GET_VFLG; LT */ |
| 380 |
|
case 14: |
| 381 |
< |
/* N--V--CZ shifted by 3 leads to V--CZ--- */ |
| 382 |
< |
return (((nzvc << 3) ^ nzvc) & 0x88) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */ |
| 381 |
> |
nzvc &= 0x0e; |
| 382 |
> |
return (((nzvc << 2) ^ nzvc) & 0x0c) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */ |
| 383 |
|
case 15: |
| 384 |
< |
return (((nzvc << 3) ^ nzvc) & 0x88) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */ |
| 384 |
> |
nzvc &= 0x0e; |
| 385 |
> |
return (((nzvc << 2) ^ nzvc) & 0x0c) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */ |
| 386 |
|
} |
| 387 |
|
return 0; |
| 388 |
|
} |
| 389 |
|
|
| 390 |
|
#ifdef SPARC_V8_ASSEMBLY |
| 391 |
|
|
| 392 |
< |
static inline char *str_flags(void) |
| 228 |
< |
{ |
| 229 |
< |
static char str[8]; |
| 230 |
< |
sprintf(str, "%c%c%c%c%c", |
| 231 |
< |
GET_XFLG ? 'X' : '-', |
| 232 |
< |
GET_NFLG ? 'N' : '-', |
| 233 |
< |
GET_ZFLG ? 'Z' : '-', |
| 234 |
< |
GET_VFLG ? 'V' : '-', |
| 235 |
< |
GET_CFLG ? 'C' : '-' |
| 236 |
< |
); |
| 237 |
< |
return str; |
| 238 |
< |
} |
| 239 |
< |
|
| 240 |
< |
static inline uae_u32 sparc_v8_flag_add_8(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 392 |
> |
static inline uae_u32 sparc_v8_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 393 |
|
{ |
| 394 |
|
uae_u32 value; |
| 395 |
|
__asm__ ("\n" |
| 396 |
|
" sll %2, 24, %%o0\n" |
| 397 |
|
" sll %3, 24, %%o1\n" |
| 398 |
|
" addcc %%o0, %%o1, %%o0\n" |
| 399 |
< |
" subx %%g0, %%g0, %%o1\n" |
| 400 |
< |
" srl %%o0, 24, %0 ! 8-bit result\n" |
| 401 |
< |
" and %%o1, 0x202, %%o1 ! X, C flags\n" |
| 402 |
< |
" and %0, 0x80, %%o0\n" |
| 403 |
< |
" or %%o1, %%o0, %%o1 ! N flag\n" |
| 404 |
< |
" subcc %%g0, %0, %%g0\n" |
| 405 |
< |
" subx %%o1, -1, %%o1 ! Z flag\n" |
| 399 |
> |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 400 |
> |
" srl %%o0, 24, %0\n" |
| 401 |
> |
" stb %%o1, [%1 + 1]\n" |
| 402 |
> |
" bl,a .+8\n" |
| 403 |
> |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 404 |
> |
" bz,a .+8\n" |
| 405 |
> |
" or %%o1, 0x04, %%o1 ! Z flag\n" |
| 406 |
|
" bvs,a .+8\n" |
| 407 |
< |
" or %%o1, 0x10, %%o1 ! V flag\n" |
| 408 |
< |
" sth %%o1, [%1]\n" |
| 407 |
> |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 408 |
> |
" stb %%o1, [%1]\n" |
| 409 |
|
: "=&r" (value) |
| 410 |
< |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 410 |
> |
: "r" (flags), "r" (dst), "r" (src) |
| 411 |
|
: "cc", "o0", "o1" |
| 412 |
|
); |
| 261 |
– |
|
| 262 |
– |
// printf("%d + %d = %d (flags = %s)\n", dst, src, value, str_flags()); |
| 413 |
|
return value; |
| 414 |
|
} |
| 415 |
|
|
| 416 |
< |
static inline uae_u32 sparc_v8_flag_add_16(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 416 |
> |
static inline uae_u32 sparc_v8_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 417 |
|
{ |
| 418 |
|
uae_u32 value; |
| 419 |
|
__asm__ ("\n" |
| 420 |
|
" sll %2, 16, %%o0\n" |
| 421 |
|
" sll %3, 16, %%o1\n" |
| 422 |
|
" addcc %%o0, %%o1, %%o0\n" |
| 423 |
< |
" subx %%g0, %%g0, %%o1\n" |
| 424 |
< |
" srl %%o0, 16, %0 ! 16-bit result\n" |
| 425 |
< |
" and %%o1, 0x202, %%o1 ! X, C flags\n" |
| 426 |
< |
" sra %%o0, 24, %%o0\n" |
| 427 |
< |
" and %%o0, 0x80, %%o0\n" |
| 428 |
< |
" or %%o1, %%o0, %%o1 ! N flag\n" |
| 429 |
< |
" subcc %%g0, %0, %%g0\n" |
| 280 |
< |
" subx %%o1, -1, %%o1 ! Z flag\n" |
| 423 |
> |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 424 |
> |
" srl %%o0, 16, %0\n" |
| 425 |
> |
" stb %%o1, [%1 + 1]\n" |
| 426 |
> |
" bl,a .+8\n" |
| 427 |
> |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 428 |
> |
" bz,a .+8\n" |
| 429 |
> |
" or %%o1, 0x04, %%o1 ! Z flag\n" |
| 430 |
|
" bvs,a .+8\n" |
| 431 |
< |
" or %%o1, 0x10, %%o1 ! V flag\n" |
| 432 |
< |
" sth %%o1, [%1]\n" |
| 431 |
> |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 432 |
> |
" stb %%o1, [%1]\n" |
| 433 |
|
: "=&r" (value) |
| 434 |
< |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 434 |
> |
: "r" (flags), "r" (dst), "r" (src) |
| 435 |
|
: "cc", "o0", "o1" |
| 436 |
|
); |
| 437 |
|
return value; |
| 438 |
|
} |
| 439 |
|
|
| 440 |
< |
static inline uae_u32 sparc_v8_flag_add_32(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 440 |
> |
static inline uae_u32 sparc_v8_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 441 |
|
{ |
| 442 |
|
uae_u32 value; |
| 443 |
|
__asm__ ("\n" |
| 444 |
|
" addcc %2, %3, %0\n" |
| 445 |
< |
" subx %%g0, %%g0, %%o0\n" |
| 446 |
< |
" sra %0, 24, %%o1\n" |
| 447 |
< |
" and %%o0, 0x202, %%o0 ! X, C flags\n" |
| 448 |
< |
" and %%o1, 0x80, %%o1\n" |
| 449 |
< |
" or %%o0, %%o1, %%o0 ! N flag\n" |
| 450 |
< |
" subcc %%g0, %0, %%g0\n" |
| 302 |
< |
" subx %%o0, -1, %%o0 ! Z flag\n" |
| 445 |
> |
" addx %%g0, %%g0, %%o0 ! X,C flags\n" |
| 446 |
> |
" stb %%o0, [%1 + 1]\n" |
| 447 |
> |
" bl,a .+8\n" |
| 448 |
> |
" or %%o0, 0x08, %%o0 ! N flag\n" |
| 449 |
> |
" bz,a .+8\n" |
| 450 |
> |
" or %%o0, 0x04, %%o0 ! Z flag\n" |
| 451 |
|
" bvs,a .+8\n" |
| 452 |
< |
" or %%o0, 0x10, %%o0 ! V flag\n" |
| 453 |
< |
" sth %%o0, [%1]\n" |
| 452 |
> |
" or %%o0, 0x02, %%o0 ! V flag\n" |
| 453 |
> |
" stb %%o0, [%1]\n" |
| 454 |
|
: "=&r" (value) |
| 455 |
< |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 456 |
< |
: "cc", "o0", "o1" |
| 455 |
> |
: "r" (flags), "r" (dst), "r" (src) |
| 456 |
> |
: "cc", "o0" |
| 457 |
|
); |
| 458 |
|
return value; |
| 459 |
|
} |
| 587 |
|
); |
| 588 |
|
} |
| 589 |
|
|
| 590 |
+ |
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 591 |
+ |
{ |
| 592 |
+ |
uae_u32 value; |
| 593 |
+ |
__asm__ ("\n" |
| 594 |
+ |
" ldub [%1 + 1], %%o1 ! Get the X Flag\n" |
| 595 |
+ |
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n" |
| 596 |
+ |
" addxcc %2, %3, %0\n" |
| 597 |
+ |
: "=&r" (value) |
| 598 |
+ |
: "r" (flags), "r" (dst), "r" (src) |
| 599 |
+ |
: "cc", "o0", "o1" |
| 600 |
+ |
); |
| 601 |
+ |
return value; |
| 602 |
+ |
} |
| 603 |
+ |
|
| 604 |
+ |
#if 0 |
| 605 |
+ |
VERY SLOW... |
| 606 |
+ |
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 607 |
+ |
{ |
| 608 |
+ |
uae_u32 value; |
| 609 |
+ |
__asm__ ("\n" |
| 610 |
+ |
" sll %2, 24, %%o0\n" |
| 611 |
+ |
" sll %3, 24, %%o1\n" |
| 612 |
+ |
" addcc %%o0, %%o1, %%o0\n" |
| 613 |
+ |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 614 |
+ |
" bvs,a .+8\n" |
| 615 |
+ |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 616 |
+ |
" ldub [%1 + 1], %%o2\n" |
| 617 |
+ |
" subcc %%g0, %%o2, %%g0\n" |
| 618 |
+ |
" addx %%g0, %%g0, %%o2\n" |
| 619 |
+ |
" sll %%o2, 24, %%o2\n" |
| 620 |
+ |
" addcc %%o0, %%o2, %%o0\n" |
| 621 |
+ |
" srl %%o0, 24, %0\n" |
| 622 |
+ |
" addx %%g0, %%g0, %%o2\n" |
| 623 |
+ |
" or %%o1, %%o2, %%o1 ! update X,C flags\n" |
| 624 |
+ |
" bl,a .+8\n" |
| 625 |
+ |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 626 |
+ |
" ldub [%1], %%o0 ! retreive the old NZVC flags (XXX)\n" |
| 627 |
+ |
" bvs,a .+8\n" |
| 628 |
+ |
" or %%o1, 0x02, %%o1 ! update V flag\n" |
| 629 |
+ |
" and %%o0, 0x04, %%o0 ! (XXX) but keep only Z flag\n" |
| 630 |
+ |
" and %%o1, 1, %%o2 ! keep C flag in %%o2\n" |
| 631 |
+ |
" bnz,a .+8\n" |
| 632 |
+ |
" or %%g0, %%g0, %%o0 ! Z flag cleared if non-zero result\n" |
| 633 |
+ |
" stb %%o2, [%1 + 1] ! store the X flag\n" |
| 634 |
+ |
" or %%o1, %%o0, %%o1\n" |
| 635 |
+ |
" stb %%o1, [%1]\n" |
| 636 |
+ |
: "=&r" (value) |
| 637 |
+ |
: "r" (flags), "r" (dst), "r" (src) |
| 638 |
+ |
: "cc", "o0", "o1", "o2" |
| 639 |
+ |
); |
| 640 |
+ |
return value; |
| 641 |
+ |
} |
| 642 |
+ |
#endif |
| 643 |
+ |
|
| 644 |
+ |
static inline uae_u32 sparc_v8_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 645 |
+ |
{ |
| 646 |
+ |
uae_u32 value; |
| 647 |
+ |
__asm__ ("\n" |
| 648 |
+ |
" ldub [%1 + 1], %%o0 ! Get the X Flag\n" |
| 649 |
+ |
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n" |
| 650 |
+ |
" addxcc %2, %3, %0\n" |
| 651 |
+ |
" ldub [%1], %%o0 ! retreive the old NZVC flags\n" |
| 652 |
+ |
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n" |
| 653 |
+ |
" addx %%o0, %%g0, %%o0 ! X,C flags\n" |
| 654 |
+ |
" bl,a .+8\n" |
| 655 |
+ |
" or %%o0, 0x08, %%o0 ! N flag\n" |
| 656 |
+ |
" bvs,a .+8\n" |
| 657 |
+ |
" or %%o0, 0x02, %%o0 ! V flag\n" |
| 658 |
+ |
" bnz,a .+8\n" |
| 659 |
+ |
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n" |
| 660 |
+ |
" stb %%o0, [%1]\n" |
| 661 |
+ |
" stb %%o0, [%1 + 1]\n" |
| 662 |
+ |
: "=&r" (value) |
| 663 |
+ |
: "r" (flags), "r" (dst), "r" (src) |
| 664 |
+ |
: "cc", "o0" |
| 665 |
+ |
); |
| 666 |
+ |
return value; |
| 667 |
+ |
} |
| 668 |
+ |
|
| 669 |
|
#endif /* SPARC_V8_ASSEMBLY */ |
| 670 |
|
|
| 671 |
|
#ifdef SPARC_V9_ASSEMBLY |
| 980 |
|
|
| 981 |
|
#endif /* SPARC_V9_ASSEMBLY */ |
| 982 |
|
|
| 983 |
+ |
#endif |
| 984 |
+ |
|
| 985 |
|
#else |
| 986 |
|
|
| 987 |
|
struct flag_struct { |
| 1000 |
|
#define VFLG (regflags.v) |
| 1001 |
|
#define XFLG (regflags.x) |
| 1002 |
|
|
| 1003 |
+ |
#define SET_CFLG(x) (CFLG = (x)) |
| 1004 |
+ |
#define SET_NFLG(x) (NFLG = (x)) |
| 1005 |
+ |
#define SET_VFLG(x) (VFLG = (x)) |
| 1006 |
+ |
#define SET_ZFLG(x) (ZFLG = (x)) |
| 1007 |
+ |
#define SET_XFLG(x) (XFLG = (x)) |
| 1008 |
+ |
|
| 1009 |
+ |
#define GET_CFLG CFLG |
| 1010 |
+ |
#define GET_NFLG NFLG |
| 1011 |
+ |
#define GET_VFLG VFLG |
| 1012 |
+ |
#define GET_ZFLG ZFLG |
| 1013 |
+ |
#define GET_XFLG XFLG |
| 1014 |
+ |
|
| 1015 |
+ |
#define CLEAR_CZNV do { \ |
| 1016 |
+ |
SET_CFLG (0); \ |
| 1017 |
+ |
SET_ZFLG (0); \ |
| 1018 |
+ |
SET_NFLG (0); \ |
| 1019 |
+ |
SET_VFLG (0); \ |
| 1020 |
+ |
} while (0) |
| 1021 |
+ |
|
| 1022 |
+ |
#define COPY_CARRY (SET_XFLG (GET_CFLG)) |
| 1023 |
+ |
|
| 1024 |
|
static __inline__ int cctrue(const int cc) |
| 1025 |
|
{ |
| 1026 |
|
switch(cc){ |
| 1044 |
|
return 0; |
| 1045 |
|
} |
| 1046 |
|
|
| 1047 |
< |
#endif |
| 1047 |
> |
#endif /* OPTIMIZED_FLAGS */ |
| 1048 |
> |
|
| 1049 |
> |
#endif /* M68K_FLAGS_H */ |
